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Plug-in protection against Cross Site Request Forgery attacks. ''Note'': CsrfMiddleware was added to trunk in [2868] (see #510) and now has [http://www.djangoproject.com/documentation/csrf/ official documentation].

This middleware enables the [http://psyco.sourceforge.net/ psyco] extension module which can massively speed up the execution of any Python code. Prior to [3877], there was a setting in settings.py which allowed one to enable psyco, but this was removed in favor of a middleware solution instead.